I am working on the proj that needed 2 MCU and nrf51822 work as slave.
I would like to know any ref on how to firmware upgrade on board without external tool?
We're looking for a Nordic nRF51822 based low profile/small USB dongle that we can use for our iBeacon software.
It would need to come complete with casing and the ability...
Hi all,
i want to establish connection between two threads in cmsis-rtos, can i use
1) semaphore to do this?
2)message queue should be used or any other ipcs can be...
Hi,
I have two CPU in our product. (STM32F2 and Nordic nrf51422).
I use serialization function to link those two CPU(refer to ble_s110_serialization sample)
But I find...
Hi,
My behavior is as follows
Turn on my device(use 51422) and advertising(2 Service and 3 Characteristic)
Turn on my cell phone(Samsung Note3),scan my device...
Hello:
I used analog IIC write MPU6050. Again after power download programs, mpu6050 can run up there ACK response. But the debug will not run. Simulation IIC because no...
Hello!
How can I communicate with my nRF24L01+ and nRF51822 at the same time. I can set up same channel, CRC-mode and I don't use ESB. But what about address? How do I set...
I use nRF Connect to connect to nRF52832 device. 1st connection is bonded authenticated encrypted link, but 2nd connection becomes not bonded unencrypted link. Why 1st and...
Hi,
I was provisioning devices for a customer today when I noticed at the end of provisioning that the JSON database file that was exported had all the features except ...
Hello,
We are developing a library which is intended to use the trustzone feature available with nrf5340 DK. We followed the instructions available in Using a custom Secure...
Hi
When I use the nrfjprog with the command line:
The application is starting and the code running.
If I do the same again (with the same hex or a newer one) the...
I am developing a project with nrf mesh SDK 5.0.0, I use dimming code, but the code uses rtt input, if I want to replace rtt with buttons, what should I do? I'm learning,...
Hello! I will try to make this as simple as possible with the details regarding this issue What I have
nRF52840 DK (pca10056) (As BLE sniffer)
nRF52 (pca10040) (Used...
Hello
We are using NRF9160 AssetTracker 1 and MQTT to AWS. We have a AWS Certificate, Root Certificate and Public and Private Keys on the device.
We want to start testing...
My device get deep sleep mode. It wakes up from reset button trigger. Because I couldn't gpio pin trigger for wakes up. So I put vibration sensor to reset pin. It wakes up...
Hello, I am developing a custom board based on nRF52832 that should spend most of it's time in SystemOFF mode. Eventually, it will wake up on an GPIO event caused by the external...
Hi,
I've been using the DWT macro cell successfully on the app core to provide high accuracy timing information. E.g., with these declarations:
and enabling the cycle...
hi ~
peripheral can bond how many smartphones ?
and What will happened if over bond?
i use sdk12.2 below 'is my setting
#define SEC_PARAM_BOND 1 #define SEC_PARAM_MITM...
Hi…
I am using freeRTOS V10.0.0 release
I am using nRF52820 + SDK V17.0.2 with SD112 V7.2.0 along with tickless idle as this is a battery based product…
When my application...
Hey guys, I'm an embedded software engineer and I am currently working in a prototype, specifically using the Circuitdojo Feather nRF9160 , I am also using a Hologram International...
Based on the Sample "Bluetooth Peripheral_uart:
My latest attempt to send long data stream:
I send:
1234567890123456789012345678901234567890123456789012345678901234567890...
